Lean 4 fork for HoTT-compatible kernel extensions (Path types, transport, HITs). Maintained against upstream leanprover/lean4.
6916a8ceca
@digama0 After this commit, your example will also produce a
non-destructive update.
```lean
structure test :=
(data1 : array nat 3)
(data2 : array nat 3)
(sz: nat)
def test.write (s : test) (i : fin 3) (v : nat) :=
{s with data1 := s^.data1^.write i v, data2 := s^.data2^.write i v}
set_option trace.array.update true
(fin.of_nat 1) 10 in
(a^.data1^.read (fin.of_nat 1), a^.data2^.read (fin.of_nat 2)) -- destructive write
```
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| library | ||
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| script | ||
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| tmp | ||
| .appveyor.yml | ||
| .appveyor.yml.in | ||
| .codecov.yml | ||
| .gitignore | ||
| .travis.yml | ||
| .travis.yml.in | ||
| LICENSE | ||
| README.md | ||
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About
- Homepage
- Theorem Proving in Lean
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- For HoTT mode, please use Lean2.
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- GMP (GNU multiprecision library)
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